Objective To analyze the clonality of the T cells and specific repertoire skewing of T cell receptor α(TCRα) chain in patients with micrometastasis from breast cancer, and to understand the molecular characteristics of anti-tumor T cell clones. Methods RT-PCR amplification of 32 subfamilies of the TCR AV CDR3 gene and immune spectratyping analysis were used to investigate the repertoire drift of TCR AV CDR3 and clonality of T cells in 10 patients with micrometastasis from breast cancer. The complete DNA seq...
0引言T细胞通过T细胞受体(T c e l l r e c e p t o r,T C R)识别抗原,引起具有特定互补决定区3(complementarity determining region 3,CDR3)T细胞的克隆性增生,在机体抗肿瘤、抗感染和自身免疫性疾病中起着重要作用[1]。研究表明多种实体性肿瘤患者体内存在针对肿瘤相关抗原?